If you use it as 5.8GHz, it should work just fine. I think the FCC is finally cracking down on these illegal devices. I got a generic notice warning about importing non-compliant devices, and since we don't import anything, I am sure this was aimed at others that do.

I don't think that is what he is asking.

The goggles plug into the trainer port. With (some) Futaba transmitters you can assign the trainer input channels freely to the output ones at the same time that the sticks still control other ones. JR9303 for example can't do this.

You can use the trainer port input signals for the channels, but that is passed directly to the processor, not the pre-processor. I didn't want anything changing the signal... but I suppose it is something I could look at in the future.

Wow, I can't believe those goggles have 2490MHz and 2510MHz available. Those frequencies are reserved for federal agencies in the U.S. That's the biggest no-no you can possibly do in the eyes of the FCC/IC.

The goggles do not transmit at all on any frequency.
They receive the signals from the transmitter in your aircraft.

They plug into the trainer port on your transmitter and control two channels on your transmitter to point the camera in the aircraft.

They are only receivers, not transmitters. .

Quote:

You can use the trainer port input signals for the channels, but that is passed directly to the processor, not the pre-processor. I didn't want anything changing the signal... but I suppose it is something I could look at in the future.

I know I am a little slow, but does this mean that I will be able plug them into the trainer port of your new transmitter and they will work as they are supposed to?

Rubbish. If you actually read the phrase you have highlighted you will see it says "...control two channels on your transmitter". There is no mention of transmitting any RF signal at all.

Nor can you tell from the photo whether the antenna is used for Tx or Rx. However, if you think for even a moment about the purpose of FPV goggles it should be clear that their only use of RF is to receive a video feed.

Control of the transmitter is acheived by generating a standard PPM signal on a cable that is plugged into the Tx trainer port. Two of the 8 channels in the PPM stream carry the pan and tilt signals. To control the pan-and-tilt mount on the model these input signals have to be mapped to output channels on the Tx for transmission to the Rx in the model.

Covey advised a long time ago that one should always "seek to understand before seeking to be understood".

They might be receivers, but they receive from somewhere. That somewhere is the video transmitter in the plane which transmits at the given frequencies for the goggle to receive. The US is not the only country where RC and FPV is used and Hobbyking market all over the world, not in US only. In fact, in different other countries it might be perfectly legal to use those frequencies, all does not develop around the US only. Every person must verify it himself and adjust the video transmitter to the legal frequency, that is why different frequencies are available. It can use the various 2.4 and 5.8ghz as listed.

You can use the trainer port input signals for the channels, but that is passed directly to the processor, not the pre-processor. I didn't want anything changing the signal... but I suppose it is something I could look at in the future.

I don't quite follow this ( since the definition of processor and pre-processor is specific to your code )
Does this mean only the raw PPM trainer port information can be sent to a any chosen output channel?
No way to adjust endpoints, subtrim, direction, or to use them mixed with other inputs?

If so this seems like quite a limitation.

If they were allowed to be inputs to the mixers (i.e what are called "master" channels in most transmitters) then you could do anything with them.

I don't quite follow this ( since the definition of processor and pre-processor is specific to your code )
Does this mean only the raw PPM trainer port information can be sent to a any chosen output channel?
No way to adjust endpoints, subtrim, direction, or to use them mixed with other inputs?

If so this seems like quite a limitation.

If they were allowed to be inputs to the mixers (i.e what are called "master" channels in most transmitters) then you could do anything with them.

Pat MacKenzie

Preprocessor might be the area where the pots and switches are "smoothed" and over sampled, so you would want the external inputs to go in just after this step since they should have already been processed from their source.

Now if preprocessor means after mixing and everything else, this would not be as useful, especially for trainer use.